Enhance UI: favicon, AgentDetail overhaul, PageTabBar, and config form

Add favicon and web manifest branding assets. Major AgentDetail page
rework with tabbed sections, run history, and live status. Add
PageTabBar component for consistent page-level tabs. Expand
AgentConfigForm with more adapter fields. Improve NewAgentDialog,
OnboardingWizard, and Issues page layouts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/components/OnboardingWizard.tsx

@@ -58,6 +58,7 @@ export function OnboardingWizard() {
   const [command, setCommand] = useState("");
   const [args, setArgs] = useState("");
   const [url, setUrl] = useState("");
+  const [cwdPickerNotice, setCwdPickerNotice] = useState<string | null>(null);
 
   // Step 3
   const [taskTitle, setTaskTitle] = useState("Create your CEO HEARTBEAT.md");
@@ -88,6 +89,7 @@ export function OnboardingWizard() {
     setCommand("");
     setArgs("");
     setUrl("");
+    setCwdPickerNotice(null);
     setTaskTitle("Create your CEO HEARTBEAT.md");
     setTaskDescription("You're the CEO of the company, make sure you have a file agents/ceo/HEARTBEAT.md that tells you your core loop. You MUST use the Paperclip SKILL.");
     setCreatedCompanyId(null);
@@ -406,9 +408,28 @@ export function OnboardingWizard() {
                         className="inline-flex items-center rounded-md border border-border px-2 py-0.5 text-xs text-muted-foreground hover:bg-accent/50 transition-colors shrink-0"
                         onClick={async () => {
                           try {
+                            setCwdPickerNotice(null);
                             // @ts-expect-error -- showDirectoryPicker is not in all TS lib defs yet
                             const handle = await window.showDirectoryPicker({ mode: "read" });
-                            setCwd(handle.name);
+                            const pickedPath =
+                              typeof handle === "object" &&
+                              handle !== null &&
+                              typeof (handle as { path?: unknown }).path === "string"
+                                ? String((handle as { path: string }).path)
+                                : "";
+                            if (pickedPath) {
+                              setCwd(pickedPath);
+                              return;
+                            }
+                            const selectedName =
+                              typeof handle === "object" &&
+                              handle !== null &&
+                              typeof (handle as { name?: unknown }).name === "string"
+                                ? String((handle as { name: string }).name)
+                                : "selected folder";
+                            setCwdPickerNotice(
+                              `Directory picker only exposed "${selectedName}". Paste the absolute path manually.`,
+                            );
                           } catch {
                             // user cancelled or API unsupported
                           }
@@ -417,6 +438,9 @@ export function OnboardingWizard() {
                         Choose
                       </button>
                     </div>
+                    {cwdPickerNotice && (
+                      <p className="mt-1 text-xs text-amber-400">{cwdPickerNotice}</p>
+                    )}
                   </div>
                   <div>
                     <label className="text-xs text-muted-foreground mb-1 block">